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So it turns out we haven't been panic buying lentils after all. There is a benign explanation for the sudden disappearance of split peas from the nation's grocery store shelves. And it is all to do with when seemingly [[gaussian distribution]]s reveal themselves to be [[leptokurtic]]. Yes, you read that | {{g}}So it turns out we haven't been panic buying lentils after all. There is a benign explanation for the sudden disappearance of split peas from the nation's grocery store shelves. And it is all to do with when seemingly [[gaussian distribution]]s reveal themselves to be [[leptokurtic]]. Yes, you read that right. | ||
This is all about [[kurtosis]]. | This is all about [[kurtosis]]. | ||
In ordinary times, our lentil-buying habits are regular: hippies and vegans (a small (but growing!) portion of the population) buy a lot of lentils, and everyone else buys none. | |||
Well, they might have ''one'' tin, at the back of your cupboard, that someone got in a weak moment years ago, just in case of unexpected apocalypse. | |||
The point is that in peacetime our lentil buying decisions are predictable and and mostly independent of each other: ''my'' lentil acquisition does not greatly influence, and is not particularly correlated with, ''yours''. | |||
National weekly lentil purchases therefore usually cleave to a [[normal distribution]]. A hippy |